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comparison web/log.py @ 164:632d436d227b

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LHS axis scaling easily changeable
author Matt Johnston <matt@ucc.asn.au>
date Mon, 21 Jan 2013 07:25:29 +0800
parents 683cfd134f6a
children 30390852cb5d
comparison
equal deleted inserted replaced
159:683cfd134f6a 164:632d436d227b
67 os.environ['MATT_PNG_BODGE_FILTER'] = 'paeth' 67 os.environ['MATT_PNG_BODGE_FILTER'] = 'paeth'
68 rrds = all_sensors() 68 rrds = all_sensors()
69 69
70 graph_args = [] 70 graph_args = []
71 have_volts = False 71 have_volts = False
72
73 ## volts = temp * volts_div + volts_shift
74 #volts_div = 10
75 #volts_shift = 2
76 volts_div = 1
77 volts_shift = 0
78
79 volts_mult = 1.0/volts_div
80
72 for n, (rrdfile, sensor) in enumerate(rrds): 81 for n, (rrdfile, sensor) in enumerate(rrds):
73 unit = None 82 unit = None
74 if 'avrtemp' in sensor: 83 if 'avrtemp' in sensor:
75 continue 84 continue
76 if 'voltage' in sensor: 85 if 'voltage' in sensor:
84 graph_args.append('CDEF:%(vname)s=raw%(vname)s,-0.2,*,3,+' % locals()) 93 graph_args.append('CDEF:%(vname)s=raw%(vname)s,-0.2,*,3,+' % locals())
85 else: 94 else:
86 vname = 'temp%d' % n 95 vname = 'temp%d' % n
87 graph_args.append('DEF:raw%(vname)s=%(rrdfile)s:temp:AVERAGE' % locals()) 96 graph_args.append('DEF:raw%(vname)s=%(rrdfile)s:temp:AVERAGE' % locals())
88 # limit max temp to 50 97 # limit max temp to 50
89 graph_args.append('CDEF:%(vname)s=raw%(vname)s,35,GT,UNKN,raw%(vname)s,0.1,*,2,+,IF' % locals()) 98 graph_args.append('CDEF:%(vname)s=raw%(vname)s,38,GT,UNKN,raw%(vname)s,%(volts_mult)f,*,%(volts_shift)f,+,IF' % locals())
90 unit = '<span face="Liberation Serif">º</span>C' 99 unit = '<span face="Liberation Serif">º</span>C'
91 100
92 format_last_value = None 101 format_last_value = None
93 if unit: 102 if unit:
94 try: 103 try:
122 '-w', str(config.GRAPH_WIDTH), 131 '-w', str(config.GRAPH_WIDTH),
123 '-h', str(config.GRAPH_HEIGHT), 132 '-h', str(config.GRAPH_HEIGHT),
124 '--slope-mode', 133 '--slope-mode',
125 '--border', '0', 134 '--border', '0',
126 # '--vertical-label', 'Voltage', 135 # '--vertical-label', 'Voltage',
127 '--y-grid', '0.1:1', 136 '--y-grid', '%(volts_mult)f:1' % locals(),
128 '--dynamic-labels', 137 '--dynamic-labels',
129 '--grid-dash', '1:0', 138 '--grid-dash', '1:0',
130 '--zoom', str(config.ZOOM), 139 '--zoom', str(config.ZOOM),
131 '--color', 'GRID#00000000', 140 '--color', 'GRID#00000000',
132 '--color', 'MGRID#aaaaaa', 141 '--color', 'MGRID#aaaaaa',
137 '--imgformat', 'PNG'] \ 146 '--imgformat', 'PNG'] \
138 + graph_args 147 + graph_args
139 args += ['--font', 'DEFAULT:12:%s' % config.GRAPH_FONT] 148 args += ['--font', 'DEFAULT:12:%s' % config.GRAPH_FONT]
140 args += ['--font', 'WATERMARK:10:%s' % config.GRAPH_FONT] 149 args += ['--font', 'WATERMARK:10:%s' % config.GRAPH_FONT]
141 if have_volts: 150 if have_volts:
142 args += ['--right-axis', '10:-20', # matches the scalevolts CDEF above 151 volts_shift_div = volts_div * volts_shift
143 '--right-axis-format', '%.0lf', 152 args += ['--right-axis', '%(volts_div)f:-%(volts_shift_div)f' % locals(),
153 # '--right-axis-format', '%.0lf',
144 # '--right-axis-label', 'Temperature' 154 # '--right-axis-label', 'Temperature'
145 ] 155 ]
146 156
147 print>>sys.stderr, ' '.join("'%s'" % s for s in args) 157 print>>sys.stderr, ' '.join("'%s'" % s for s in args)
148 rrdtool.graph(*args) 158 rrdtool.graph(*args)